Put-Call Ratio (Volume) (10-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

ACM Research, Inc. (ACMR) had 10-Day Put-Call Ratio (Volume) of 0.4886 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5657
Historical Volatility (Parkinson)	0.5036
Implied Volatility (Calls)	0.7029
Implied Volatility (Puts)	0.7220
Implied Volatility (Mean)	0.7125
Put-Call Implied Volatility Ratio	1.0272
Implied Volatility Skew	0.0325
Option Statistics
Put-Call Ratio (Volume)	0.4886
Put-Call Ratio (Open Interest)	0.2346